Fuel injectors firing
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Joined: May 2008
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Car: 88' Trans-AM WS6
Engine: 305 TPI
Transmission: Auto
Fuel injectors firing
Could someone explain how the fuel injectors are fired?
Apparently there are only 2 wires coming from my ecu D15 and D16 which switch to ground firing 4 cylinders each time.
the other wire is connected to 12v all the time.
Is this correct?
Apparently there are only 2 wires coming from my ecu D15 and D16 which switch to ground firing 4 cylinders each time.
the other wire is connected to 12v all the time.
Is this correct?
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Car: '91 Z28 convertible
Engine: TPI
Transmission: T5
Axle/Gears: 3.27 posi disc
Re: Fuel injectors firing
The injectors have power through fuses and are grounded by the ECM, all 8 at once (it's called "batch fire"). They are fired on EVERY revolution, so twice per firing cycle.
Hope this helps.
Lou
Hope this helps.
Lou
Thread Starter
Junior Member
Joined: May 2008
Posts: 36
Likes: 0
Car: 88' Trans-AM WS6
Engine: 305 TPI
Transmission: Auto
Re: Fuel injectors firing
yeah, I think I got it. Im trying to read the rpm's and Im reading the pulses just might have to adjust the multiplier.
1000 pulses/min should be 1000 rpm
1000 pulses/min should be 1000 rpm
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